STM32L431xx Ultra-low-power Arm® Cortex®-M4 32-.
STMicroelectronics
STM32L431CB - Ultra-low-power Arm Cortex-M4 32-bit MCU+FPU
STM32L431xx Ultra-low-power Arm® Cortex®-M4 32-bit MCU+FPU, 100DMIPS, up to 256KB Flash, 64KB SRAM, analog, audio Datasheet - production data Featur.